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 Compare some 
physical properties of 
water with those of 
other liquids; and 
 Associate the 
difference in the 
properties of the 
liquids to the types 
and strength of 
intermolecular forces 
existing between 
molecules.
 Buret 
 250-ml beaker 
 100-ml beaker 
 500-ml graduated cylinder 
 Glass stirring rod 
 Plastic comb 
 Blade 
 Wax paper 
 Dropper 
 Test tube holder
Actual presentation.
 Charged objects also attracts ethanol, but it 
is not noticeable like water. While Kerosene is 
not attracted by charged objects at all. 
 Though polar compounds are neutral, they 
are called polar because they act like they 
have oppositely charged ends, or poles. One 
side is positive, the other, negative. They act 
like magnets and thus are attracted to 
charged objects.
Wax paper on ethanol and kerosene.
 Based on the observation, the water doesn’t 
spread easily on wax paper, it just stayed on 
top of it. 
 On the other hand, Kerosene was easily 
absorbed by the wax paper.
 When the blade is placed on top of 
water, it will not sink. Because the 
water molecules supports the blade 
that is lighter. 
 But when the blade is placed on top of 
the detergent solution, it will sink 
slowly because the concentration of the 
detergent delays it. 
 Lastly, when the blade is placed on top 
of the kerosene it will quickly sink. Blade in kerosene. 
Blade in water.
 When put ice on water, the water level increased. 
But as the water melts, the water level suddenly 
decreased a bit. It is because the moisture of 
water is being release outside the container that 
will reduce the water level inside the container. 
Initial. 
Final.
We believe that the main principle of this 
experiment is to thoroughly understand the 
different variations of intermolecular forces of 
attraction. Being said that, we learned that these 
IMFAs –London, H-Bonding, DD, ID- vary on 
strength, probability in application, and precision. 
To sum things up, we conclude that it is on how we 
apply the IMFAs into our day-to-day activities, 
that, is the goal of the experiment.
There have been a lot of breakthroughs regarding IMFA, 
both relatively on small and large-scale accounts. Here are 
few of the topics mostly discussed: 
 Determination of Intermolecular Forces via Low-Energy 
Molecular Beam Scattering by R. B. Bernstein and J. T. 
Muckerman 
 Microwave Pressure Broadening and Its Application to 
Intermolecular Forces by G. Birnbaum 
 Intermolecular Forces Determined by Nuclear Magnetic 
Resonance by M. Bloom and I. Oppenheim

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Experiment 1 [Intermolecular Forces of Attraction]

  • 1.
  • 2.  Compare some physical properties of water with those of other liquids; and  Associate the difference in the properties of the liquids to the types and strength of intermolecular forces existing between molecules.
  • 3.  Buret  250-ml beaker  100-ml beaker  500-ml graduated cylinder  Glass stirring rod  Plastic comb  Blade  Wax paper  Dropper  Test tube holder
  • 4.
  • 6.  Charged objects also attracts ethanol, but it is not noticeable like water. While Kerosene is not attracted by charged objects at all.  Though polar compounds are neutral, they are called polar because they act like they have oppositely charged ends, or poles. One side is positive, the other, negative. They act like magnets and thus are attracted to charged objects.
  • 7. Wax paper on ethanol and kerosene.
  • 8.  Based on the observation, the water doesn’t spread easily on wax paper, it just stayed on top of it.  On the other hand, Kerosene was easily absorbed by the wax paper.
  • 9.  When the blade is placed on top of water, it will not sink. Because the water molecules supports the blade that is lighter.  But when the blade is placed on top of the detergent solution, it will sink slowly because the concentration of the detergent delays it.  Lastly, when the blade is placed on top of the kerosene it will quickly sink. Blade in kerosene. Blade in water.
  • 10.  When put ice on water, the water level increased. But as the water melts, the water level suddenly decreased a bit. It is because the moisture of water is being release outside the container that will reduce the water level inside the container. Initial. Final.
  • 11. We believe that the main principle of this experiment is to thoroughly understand the different variations of intermolecular forces of attraction. Being said that, we learned that these IMFAs –London, H-Bonding, DD, ID- vary on strength, probability in application, and precision. To sum things up, we conclude that it is on how we apply the IMFAs into our day-to-day activities, that, is the goal of the experiment.
  • 12. There have been a lot of breakthroughs regarding IMFA, both relatively on small and large-scale accounts. Here are few of the topics mostly discussed:  Determination of Intermolecular Forces via Low-Energy Molecular Beam Scattering by R. B. Bernstein and J. T. Muckerman  Microwave Pressure Broadening and Its Application to Intermolecular Forces by G. Birnbaum  Intermolecular Forces Determined by Nuclear Magnetic Resonance by M. Bloom and I. Oppenheim